package com.sctvcloud.bazhong.ui.utils;

import android.app.AppOpsManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.os.Build;
import android.provider.Settings;
import android.support.annotation.RequiresApi;
import android.support.v4.app.NotificationManagerCompat;
import android.text.TextUtils;
import android.widget.Toast;

import com.jiongbull.jlog.JLog;

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class NotificationsUtils {
    private static final String CHECK_OP_NO_THROW = "checkOpNoThrow";
    private static final String OP_POST_NOTIFICATION = "OP_POST_NOTIFICATION";

    @RequiresApi(api = Build.VERSION_CODES.KITKAT)
    public static boolean isNotificationEnabled(Context context) {
        if (Build.VERSION.SDK_INT >= 24) {
            return NotificationManagerCompat.from(context).areNotificationsEnabled();
        } else {
            AppOpsManager mAppOps = (AppOpsManager)
                    context.getSystemService(Context.APP_OPS_SERVICE);
            ApplicationInfo appInfo = context.getApplicationInfo();

            String pkg = context.getApplicationContext().getPackageName();
            int uid = appInfo.uid;

            Class appOpsClass = null; /* Context.APP_OPS_MANAGER */

            try {
                appOpsClass = Class.forName(AppOpsManager.class.getName());
                Method checkOpNoThrowMethod = appOpsClass.getMethod(CHECK_OP_NO_THROW, Integer.TYPE, Integer.TYPE, String.class);

                Field opPostNotificationValue = appOpsClass.getDeclaredField(OP_POST_NOTIFICATION);
                int value = (int) opPostNotificationValue.get(Integer.class);
                Integer a = (Integer) checkOpNoThrowMethod.invoke(mAppOps, value, uid, pkg);
                JLog.e("NotificationsUtils ---", "isNotificationEnabled value=" + a);
                return ((int) checkOpNoThrowMethod.invoke(mAppOps, value, uid, pkg) == AppOpsManager.MODE_ALLOWED);
            } catch (Exception e) {
                e.printStackTrace();
            }
            return false;
        }
    }

}
